Biomimetic pathways for assembling inorganic thin films


Aksay, I. A. ; Trau, M. ; Manne, S. ; Honma, I. ; Yao, N. ; Zhou, L. ; Fenter, P. ; Eisenberger, P. M. ; Gruner, S. M. Biomimetic pathways for assembling inorganic thin films. Science 1996, 273, 892-898.

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Living organisms construct various forms of laminated nanocomposites through directed nucleation and growth of inorganics at self-assembled organic templates at temperatures below 100 degrees C and in aqueous solutions. Recent research has focused on the use of functionalized organic surfaces to form continuous thin films of single-phase ceramics. Continuous thin films of mesostructured silicates have also been formed on hydrophobic and hydrophilic surfaces through a two-step mechanism. First, under acidic conditions, surfactant micellar structures are self-assembled at the solid/liquid interface, and second, inorganic precursors condense to form an inorganic-organic nanocomposite. Epitaxial coordination of adsorbed surfactant tubules is observed on mica and graphite substrates, whereas a random arrangement is observed on amorphous silica. The ability to process ceramic-organic nanocomposite films by these methods provides new technological opportunities.

Last updated on 07/02/2018